Why are these batteries "not for use with flashlights"?
1308
A lot of compact flashlight use this size. Based on warnings I've seen on similar batteries, the recommendation is for flashlights using incandescent bulbs. The lithium-ion batteries have a slightly higher output voltage which can damage incandescent bulbs.
220188
No, I bought a set of rechargeable batteries for mine and it ruined the batteries the guy at batteries pluss advised me you cannot use rechargeable batteries for these flashlights and it ruines the batteries!
1269383
I'm sure you could use them in this spotlight but for $2 I can run down to the .99 cent store and buy 2 pkg.s of AA batteries this way I have extra batteries in my pack when I take this puppy out to play, I would save my money for tacos or beer instead of using NiMH batteries. Honestly I have never used rechargable batteries in my spotlight.
1178729
I don't know. These are special batts with special chargers. They can be dangerous if used improperly.
1799392
Some of my batteries work better than others, but they all suddenly quit giving a very dimm light. These batteries have a voltage regulator that cuts bellow certain voltage (3.2 v). Their regular voltage is not 3 volts but more than 3.6 up to 4.1 v. What kind of voltage regulator they have? Just to cut below certain voltage. I don't think these are good batteries for electronic devices. At least those that require 3 volts. Bad bad.
1780707
Unlikely as the 3.6V battery is slightly larger in size than AA batteries, both in width, and more importantly, in length. It is not a great difference, but most likely enough to make it too large for your flashlight.
1679842
Don't do it! The excess voltage would surely burn something out. (If they even fit.) There are numerous suitable "double A" batteries that will work, including many rechargeable ones.
2258689
This is a very good flashlight, but for different battery useage i dont know
2140771
No. They are 18650 batteries. Probably removed from a used up laptop battery.Ultrafire batteries are crap. You might get lucky, and get a good one, probably not.
1024669
Not sure they are real energizer batteries though. Work great in my tactical flashlights.
1429957
I safely used them in a streamlight with no issues.. the streamlight takes 2 CR123 batteries and these worked great in their place.. If I had a MAG-TAC I would test these out and if I ever purchase one I will update this!! I am not scared to try! HAHA
1794314
I believe they can, these are great batteries and have the protective circuits built in. They are a bit pricey but well worth it, I have never had any problems and use them every day. I even bought more for my bigger flashlight.
1484948
You need protected cells in all high-current flashlights such as this one. With batteries in series, it is impossible to protect each cell from one circuit - it has to be in each cell.
793931
Hi ,Usually these types of batteries are used mainly for flashlights but why not , could be used for some type of cameras depending from one model to other .Personally I bought them for some flashlight .I can't tell you which cameras are compatible .
28025
my flashlight uses cr123 it works fine with the batteries I use. but as I stated my batteries are NOT re-charged.
2211894
That's a good way to put it...yes.Overall, they are like oversized AA batteries. They do, however, hold a charge very well...especially for things like tactical flashlights, etc.
912828
I'm kind of having the same issue. The new batteries I have put in, die fast. I have been using regular store bought batteries. I know there are higher power batteries sold at places like Batteries Plus, that are specifically designed for high lumen flashlights. Might be worth looking into if you want to have optimum performance from your flashlight. I recently ordered a Zebralight SC52. Waiting on it now, but also ordered a $10 high powered AA battery to use in it. It was a battery they sell, and recommend. If you still don't have good light after trying these batteries, I would send it back, or try an exchange, because these Nebo Redlines are pretty cool. Good Luck. Hope I helped in some way. LOL I'm kind of having the same issue. The new batteries I have put in, die fast. I have been using regular store bought batteries. I know there are higher power batteries sold at places like Batteries Plus, that are specifically designed for high lumen flashlights. Might be worth looking into if you want to have optimum performance from your flashlight. I recently ordered a Zebralight SC52. Waiting on it now, but also ordered a $10 high powered AA battery to use in it. It was a battery they sell, and recommend. If you still don't have good light after trying these batteries, I would send it... » Read More I'm kind of having the same issue. The new batteries I have put in, die fast. I have been using regular store bought batteries. I know there are higher power batteries sold at places like Batteries Plus, that are specifically designed for high lumen flashlights. Might be worth looking into if you want to have optimum performance from your flashlight. I recently ordered a Zebralight SC52. Waiting on it now, but also ordered a $10 high powered AA battery to use in it. It was a battery they sell, and recommend. If you still don't have good light after trying these batteries, I would send it back, or try an exchange, because these Nebo Redlines are pretty cool. Good Luck. Hope I helped in some way. LOL « Show Less